We encounter science in our daily life. Learning of science subjects is the fundamental part of our life. Every thing which we face or encounter daily is somehow related to science and scientific processes.Whatever we do or whatever happens is due to science, like gravity, coldness or hotness and every thing. A good science student can become a scientist or a good productive human being. Science is a must for all children to understand the life and all small happenings of this world. Science is also an easy way to teach the students other things and science can be taken as very good examples for other subjects.When we sleep science is used to explain why we are sleeping and why we need sleep. So due to so much abundance of the subject in our daily life science has become the essential subject.